Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ExternalMedia 4.0.0/package.mo", uses=false) Using package ExternalMedia with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ExternalMedia 4.0.0/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(ExternalMedia.Test.GenericModels.TestRunnerTranscritical,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical") translateModel(ExternalMedia.Test.GenericModels.TestRunnerTranscritical,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001079/0.001079, allocations: 103.4 kB / 15.33 MB, free: 0.5078 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001162/0.001162, allocations: 196.2 kB / 16.25 MB, free: 6.621 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.321/1.321, allocations: 222.9 MB / 239.9 MB, free: 4.516 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ExternalMedia 4.0.0/package.mo): time 0.1324/0.1324, allocations: 2.763 MB / 292.8 MB, free: 3.773 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001259/0.001259, allocations: 63.91 kB / 353.9 MB, free: 4.91 MB / 286.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1186/0.1198, allocations: 50.24 MB / 404.1 MB, free: 2.629 MB / 334.1 MB Notification: Performance of NFInst.instantiate(ExternalMedia.Test.GenericModels.TestRunnerTranscritical): time 0.3422/0.4621, allocations: 105.5 MB / 0.4977 GB, free: 13.84 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.06478/0.527, allocations: 59.72 MB / 0.556 GB, free: 11.52 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002709/0.5297, allocations: 12 kB / 0.5561 GB, free: 11.51 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.003813/0.5336, allocations: 1.088 MB / 0.5571 GB, free: 10.42 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.04686/0.5805, allocations: 12.01 MB / 0.5688 GB, free: 14.39 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.01394/0.5945, allocations: 2.94 MB / 0.5717 GB, free: 11.46 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.006881/0.6014, allocations: 2.958 MB / 0.5746 GB, free: 8.492 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0006552/0.6021, allocations: 184.1 kB / 0.5748 GB, free: 8.297 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00294/0.6051, allocations: 1.07 MB / 0.5758 GB, free: 7.223 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002258/0.6073, allocations: 0.9453 MB / 0.5767 GB, free: 6.273 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.000257/0.6076, allocations: 144 kB / 0.5769 GB, free: 6.133 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.3344/0.942, allocations: 11.04 MB / 0.5877 GB, free: 21.1 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0008353/0.9429, allocations: 373.3 kB / 0.588 GB, free: 21.1 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.002573/0.9455, allocations: 1.028 MB / 0.589 GB, free: 21.1 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.03262/0.9781, allocations: 8.659 MB / 0.5975 GB, free: 20.93 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 7.003e-06/0.9782, allocations: 0 / 0.5975 GB, free: 20.93 MB / 446.1 MB Notification: Performance of FrontEnd: time 3.005e-06/0.9782, allocations: 6.141 kB / 0.5975 GB, free: 20.93 MB / 446.1 MB Notification: Performance of Transformations before backend: time 4.467e-05/0.9782, allocations: 0 / 0.5975 GB, free: 20.93 MB / 446.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 526 * Number of variables: 526 Notification: Performance of Generate backend data structure: time 0.008119/0.9863, allocations: 3.203 MB / 0.6006 GB, free: 19.54 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.915e-05/0.9864, allocations: 10.12 kB / 0.6006 GB, free: 19.54 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01524/1.002, allocations: 1.857 MB / 0.6024 GB, free: 19.45 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002475/1.004, allocations: 1.092 MB / 0.6035 GB, free: 19.18 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002/1.004, allocations: 174.8 kB / 0.6037 GB, free: 19.17 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003946/1.005, allocations: 198.2 kB / 0.6039 GB, free: 19.17 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02293/1.028, allocations: 6.851 MB / 0.6105 GB, free: 18.75 MB / 446.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 5.082e-05/1.028, allocations: 10.44 kB / 0.6106 GB, free: 18.75 MB / 446.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002727/1.028, allocations: 87.59 kB / 0.6106 GB, free: 18.75 MB / 446.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.342e-05/1.028, allocations: 52.84 kB / 0.6107 GB, free: 18.75 MB / 446.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0246/1.053, allocations: 8.231 MB / 0.6187 GB, free: 18.73 MB / 446.1 MB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01578/1.069, allocations: 15.49 MB / 0.6338 GB, free: 24.04 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01718/1.086, allocations: 5.653 MB / 0.6394 GB, free: 23.98 MB / 462.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001975/1.088, allocations: 1.22 MB / 0.6406 GB, free: 23.96 MB / 462.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.09649/1.184, allocations: 52.01 MB / 0.6913 GB, free: 6.422 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.537e-05/1.184, allocations: 58.59 kB / 0.6914 GB, free: 6.375 MB / 494.1 MB Notification: Performance of pre-optimization done (n=242): time 4.398e-06/1.184, allocations: 3.375 kB / 0.6914 GB, free: 6.375 MB / 494.1 MB Notification: Performance of matching and sorting (n=246): time 0.04886/1.233, allocations: 14.39 MB / 0.7055 GB, free: 11.13 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.669e-05/1.233, allocations: 103.1 kB / 0.7056 GB, free: 11.01 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004928/1.234, allocations: 351 kB / 0.7059 GB, free: 10.66 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 0.0004249/1.234, allocations: 61.7 kB / 0.706 GB, free: 10.6 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003107/1.235, allocations: 0.5466 MB / 0.7065 GB, free: 10.05 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008953/1.236, allocations: 0.822 MB / 0.7073 GB, free: 9.234 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001627/1.237, allocations: 0.9687 MB / 0.7082 GB, free: 8.258 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 0.0001214/1.237, allocations: 314 kB / 0.7085 GB, free: 7.945 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003954/1.241, allocations: 2.074 MB / 0.7106 GB, free: 5.867 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004766/1.246, allocations: 2.643 MB / 0.7131 GB, free: 3.004 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.008565/1.255, allocations: 4.505 MB / 0.7175 GB, free: 14.34 MB / 0.5137 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.319e-05/1.255, allocations: 4 kB / 0.7175 GB, free: 14.34 MB / 0.5137 GB Notification: Performance of matching and sorting (n=308) (initialization): time 0.01236/1.267, allocations: 5.552 MB / 0.723 GB, free: 8.867 MB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 3.6e-05/1.267, allocations: 13.25 kB / 0.723 GB, free: 8.855 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.016e-05/1.267, allocations: 16 kB / 0.723 GB, free: 8.84 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001538/1.269, allocations: 313.5 kB / 0.7233 GB, free: 8.527 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004089/1.273, allocations: 1.059 MB / 0.7243 GB, free: 7.5 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001991/1.275, allocations: 1.899 MB / 0.7262 GB, free: 5.543 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003168/1.278, allocations: 223.7 kB / 0.7264 GB, free: 5.324 MB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007486/1.279, allocations: 399.6 kB / 0.7268 GB, free: 4.934 MB / 0.5137 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 73 * Number of states: 0 () * Number of discrete variables: 17 (testBasePropertiesDynamic.medium.phase,testBasePropertiesImplicit.medium2.baseProperties.phase,testBasePropertiesImplicit.medium1.baseProperties.phase,testBasePropertiesExplicit.medium2.baseProperties.phase,testBasePropertiesExplicit.medium1.baseProperties.phase,testStatesSat.state2.phase,testStatesSat.state1.phase,testStates.state2.phase,testStates.state1.phase,testStatesSat.completeBubbleDewStates2.bubbleStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates2.bubbleStateOnePhase.state.phase,testStatesSat.completeBubbleDewStates2.dewStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates2.dewStateOnePhase.state.phase,testStatesSat.completeBubbleDewStates1.bubbleStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates1.bubbleStateOnePhase.state.phase,testStatesSat.completeBubbleDewStates1.dewStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates1.dewStateOnePhase.state.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (293): * Single equations (assignments): 287 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(3,8), (1,1), (1,1)} Notification: Performance of prepare postOptimizeDAE: time 0.00191/1.281, allocations: 435.8 kB / 0.7272 GB, free: 4.535 MB / 0.5137 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009343/1.282, allocations: 106.8 kB / 0.7273 GB, free: 4.43 MB / 0.5137 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.04424/1.326, allocations: 46.86 MB / 0.7731 GB, free: 5.508 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.000154/1.326, allocations: 163.7 kB / 0.7732 GB, free: 5.348 MB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.41e-05/1.326, allocations: 0 / 0.7732 GB, free: 5.348 MB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.144e-05/1.326, allocations: 15.94 kB / 0.7732 GB, free: 5.332 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.2619/1.588, allocations: 65.71 MB / 0.8374 GB, free: 230.8 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.677e-05/1.588, allocations: 0 / 0.8374 GB, free: 230.8 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003864/1.592, allocations: 0.6852 MB / 0.8381 GB, free: 230.4 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009801/1.593, allocations: 0.498 MB / 0.8386 GB, free: 230 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005611/1.594, allocations: 76.41 kB / 0.8386 GB, free: 229.9 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001346/1.595, allocations: 2.041 MB / 0.8406 GB, free: 227.9 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.764e-06/1.595, allocations: 0 / 0.8406 GB, free: 227.9 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01228/1.607, allocations: 10.92 MB / 0.8513 GB, free: 218 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004962/1.608, allocations: 440.2 kB / 0.8517 GB, free: 217.6 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002734/1.608, allocations: 48 kB / 0.8517 GB, free: 217.6 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001849/1.61, allocations: 227.5 kB / 0.852 GB, free: 217.4 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003825/1.61, allocations: 183.6 kB / 0.8521 GB, free: 217.3 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002033/1.61, allocations: 98.19 kB / 0.8522 GB, free: 217.2 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.0001804/1.611, allocations: 213.6 kB / 0.8524 GB, free: 217.1 MB / 0.5606 GB Notification: Performance of sort global known variables: time 1.2e-07/1.611, allocations: 0.6562 kB / 0.8524 GB, free: 217.1 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.00561/1.616, allocations: 1.743 MB / 0.8541 GB, free: 215.4 MB / 0.5606 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 2 (testBasePropertiesDynamic.medium.p,testBasePropertiesDynamic.medium.h) * Number of discrete variables: 80 ($cse1.region3boundary,$cse2.region3boundary,$cse3.region3boundary,$cse4.region3boundary,$cse5.phase,$cse5.region,$cse6.phase,$cse6.region,$cse7.region3boundary,$cse8.region3boundary,$cse9.region3boundary,$cse10.region3boundary,$cse11.phase,$cse11.region,$cse12.phase,$cse12.region,$cse13.region3boundary,$cse14.region3boundary,$cse15.phase,$cse15.region,$cse16.phase,$cse16.region,$cse17.region3boundary,$cse18.region3boundary,$cse19.phase,$cse19.region,$cse20.phase,$cse20.region,$cse21.phase,$cse21.region,$cse22.phase,$cse22.region,$cse23.phase,$cse23.region,$cse24.phase,$cse24.region,$cse25.phase,$cse25.region,$cse26.phase,$cse26.region,$cse27.phase,$cse27.region,$cse28.phase,$cse28.region,$cse29.phase,$cse29.region,$cse30.phase,$cse30.region,$cse31.phase,$cse31.region,$cse32.phase,$cse32.region,$cse33.region3boundary,$cse34.region3boundary,$cse35.region3boundary,$cse36.region3boundary,$cse37.region3boundary,$cse38.region3boundary,$cse39.region3boundary,$cse40.region3boundary,$cse41.phase,$cse41.region,$cse42.phase,$cse42.region,$cse43.phase,$cse43.region,$cse44.phase,$cse44.region,$cse45.region3boundary,$cse46.phase,$cse46.region,$cse47.region3boundary,$cse48.region3boundary,$cse49.phase,$cse49.region,testBasePropertiesExplicit.medium1.baseProperties.phase,testBasePropertiesExplicit.medium2.baseProperties.phase,testBasePropertiesImplicit.medium1.baseProperties.phase,testBasePropertiesImplicit.medium2.baseProperties.phase,testBasePropertiesDynamic.medium.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (287): * Single equations (assignments): 234 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 50 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(1,1), (1,2), (1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.005777/1.622, allocations: 1.583 MB / 0.8557 GB, free: 214.3 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.02593/1.648, allocations: 5.926 MB / 0.8615 GB, free: 209.2 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 1.148e-05/1.648, allocations: 4 kB / 0.8615 GB, free: 209.2 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.004859/1.653, allocations: 3.762 MB / 0.8651 GB, free: 205.7 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003569/1.657, allocations: 0.6499 MB / 0.8658 GB, free: 205.3 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.009482/1.666, allocations: 9.554 MB / 0.8751 GB, free: 196.6 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009674/1.667, allocations: 1.931 MB / 0.877 GB, free: 195 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.009267/1.676, allocations: 11.73 MB / 0.8885 GB, free: 183.9 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002249/1.679, allocations: 494.9 kB / 0.8889 GB, free: 183.5 MB / 0.5606 GB Notification: Performance of SimCode: time 6.31e-07/1.679, allocations: 0 / 0.8889 GB, free: 183.5 MB / 0.5606 GB Notification: Performance of Templates: time 0.1194/1.798, allocations: 110.3 MB / 0.9967 GB, free: 73.3 MB / 0.5606 GB make -j1 -f ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical.makefile (rm -f ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical.pipe ; mkfifo ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical.pipe ; head -c 1048576 < ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical.pipe >> ../files/ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical.sim & ./ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical -abortSlowSimulation -alarm=480 -lv LOG_STATS > ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTranscritical.pipe 2>&1)